CR/DDR Set Computed and Digital Radiography

A set of test objects designed to be used quickly and easily on an annual / commissioning basis to provide an ongoing check of imaging performance in computed radiography (CR) and digital radiography (DR/DDR), particularly those aspects which are most liable to deterioration.

Resolution test pattern (type 18-010, up to 5LP/mm)

TO M1 Geometry test object (Horizontal lines at 10mm pitch, incrementsnotated along central axis) TO MS4 Mesh Test Object for

uniformity, blurring and stitchingartefacts checks (nominalaperture size 0.50mm, nominalwire diameter 0.31mm) Small Lead block for image

retention and erasure cycleefficiency checks Steel ruler Tape measure Adhesive tape 1.5mm Copper filter

The kit consists of:

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TO20 threshold contrast test object (Threshold-contrast detail-detectability: 144 details (12 sizes x 12 contrasts), size range 11mm to 0.25mm, contrast range 0.0014 to 0.924 @ 75kV, 1.5mm Cu filtration)

Copyright © 2021 Leeds Test Objects Ltd

www.leedstestobjects.com

MiRo HouseBecklands CloseBoroughbridgeNorth YorkshireYO51 9NRUNITED KINGDOM

tel: +44(0)1423 320 007

Copyright © 2021 Leeds Test Objects Ltd | SpecSh 163c 19/07/2021

CR/DDR SetCR & DR

X-Ray Images

www.leedstestobjects.com

fig. 2 TO M1 X-ray Image

MiRo HouseBecklands CloseBoroughbridgeNorth YorkshireYO51 9NRUNITED KINGDOM

tel: +44(0)1423 320 007